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Climate Variability & Change

This proposal is a request for support to serve as leader of the ICESat-II Science Definition Team (SDT) for the next three years and conduct research in support of ICESat-II science objectives. As team leader, I propose to: - Develop consensus among the SDT on the ICESat-II science requirements - Develop a flowdown from science requirements to measurement requirements - Coordinate and integrate parameter sensitivity analyses to arrive at an optimal mission configuration for ICESat-II that will meet it science objectives and maximize the missions scientific return within programmatic and technical constraints. - Document of all above activities and outcomes In my current capacity as lead of the ad-hoc SDT, I have already overseen the definition of preliminary science and measurement requirements, as well as the identification of sensitivity analyses and approaches that the team is currently carrying out. These current efforts represent the first steps in what will be a robust and rigorous analysis that will be ongoing throughout phase-A and phase-B of the ICESat-II mission and into phase-C. This proposal is a request for support to lead the competitively selected SDT through the full development of the mission science requirements beyond its preliminary stages. In that capacity, I will coordinate and integrate the efforts of the SDT to insure ICESat-II delivers the most accurate assessment of ice sheet contributions to sea level as is possible within the programmatic and technical constraints. In addition, as part of my own SDT analysis efforts, I will study various ice sheet and outlet glacier sampling strategies to insure that the mission will meet its science requirements in the face of the rapidly changing outlet glaciers. Some of these outlet glaciers greatly influence the overall ice sheet mass balance, and meaningful ice sheet mass balance assessment requires that they be appropriately observed. I will examine the sensitivities of mass balance estimates to a broad range of sampling approaches that include along-track density, off-nadir pointing, cross-track measurements etc. in order to maximize the mission science return.

Project PI: Waleed Abdalati/ University of Colorado

Ekeley W245,University of Colorado at Boulder 216 UCBBoulder, CO 80309-0216

Phone: (303)492-5087

Email: waleed.abdalati@colorado.edu

http://cires.colorado.edu/people/abdalati/

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Started: Aug 10, 2010

Last Activity: Dec 15, 2010

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